Results 21 to 30 of about 1,609,595 (239)

FOURIER PROBLEM FOR WEAKLY NONLINEAR EVOLUTION INCLUSIONS WITH FUNCTIONALS

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2019
The Fourier problem or, in other words, the problem without initial conditions for evolution equations and inclusions arise in modeling different nonstationary processes in nature, that started a long time ago and initial conditions do not affect on them
Mykola M. Bokalo, Iryna V. Skira
doaj   +1 more source

Asymptotic Stability of Solutions to a Class of Second-Order Delay Differential Equations

open access: yesMathematics, 2021
We consider a class of second-order nonlinear delay differential equations with periodic coefficients in linear terms. We obtain conditions under which the zero solution is asymptotically stable. Estimates for attraction sets and decay rates of solutions
Gennadii V. Demidenko   +1 more
doaj   +1 more source

Regular polynomial interpolation and approximation of global solutions of linear partial differential equations [PDF]

open access: yes, 2007
We consider regular polynomial interpolation algorithms on recursively defined sets of interpolation points which approximate global solutions of arbitrary well-posed systems of linear partial differential equations.
Kampen, Joerg
core   +4 more sources

Constructive method for solvability of Fredholm equation of the first kind

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
The solvability and construction of the general solution of the first kind Fredholm integral equation are among the insufficiently explored problems in mathematics. There are various approaches to solve this problem.
Serikbai Aisagaliev, Zhanat Zhunussova
doaj   +1 more source

Measure Differential Equations [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2019
25 ...
openaire   +2 more sources

Computed Chaos or Numerical Errors [PDF]

open access: yes, 2010
Discrete numerical methods with finite time-steps represent a practical technique to solve initial-value problems involving nonlinear differential equations.
Yao, Lun-Shin
core   +3 more sources

Controlled K-Fusion Frame for Hilbert Spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
K-fusion frames are a generalization of fusion frames in frame theory. In this paper, we extend the concept of controlled fusion frames to controlled K-fusion frames, and we develop some results on the controlled K-fusion frames for Hilbert spaces, which
Assila Nadia   +2 more
doaj   +1 more source

Iterated Differential Forms VI: Differential Equations

open access: yes, 2007
We describe the first term of the $\Lambda_{k-1}\mathcal{C}$--spectral sequence (see math.DG/0610917) of the diffiety (E,C), E being the infinite prolongation of an l-normal system of partial differential equations, and C the Cartan distribution on it ...
Vinogradov, A. M., Vitagliano, L.
core   +2 more sources

Transforming Radical Differential Equations to Algebraic Differential Equations

open access: yesMediterranean Journal of Mathematics, 2022
Abstract In this paper we present an algorithmic procedure that transforms, if possible, a given system of ordinary or partial differential equations with radical dependencies in the unknown function and its derivatives into a system with polynomial relations among them by means of a rational change of variables.
Falkensteiner, Sebastian   +1 more
openaire   +3 more sources

The Cauchy Problem for Parabolic Equations with Degeneration

open access: yesAdvances in Mathematical Physics, 2020
Annotation. For a second-order parabolic equation, the multipoint in time Cauchy problem is considered. The coefficients of the equation and the boundary condition have power singularities of arbitrary order in time and space variables on a certain set ...
Ivan Pukal’skii, Bohdan Yashan
doaj   +1 more source

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